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Photo: Michael Ciaglo/Getty Images

A motorcycle rally in Sturgis, South Dakota attended by approximately 460,000 in August resulted in at least 86 cases of COVID-19 in neighboring Minnesota, including four hospitalizations and one death, according to a report released by the Centers for Disease Control and Prevention on Friday.

Why it matters: The CDC said its findings illustrate how large gatherings in one area can have an impact on surrounding areas, and highlight the importance of wearing face masks and social distancing.

  • The report found that of the 86 cases, 51 were in people who attended the rally and the other 35 people came in contact with event attendees.

What they're saying: "The motorcycle rally was held in a neighboring state that did not have policies regarding event size and mask use, underscoring the implications of policies within and across jurisdictions," the report said.

  • "[T]hese findings highlight the importance of reducing the number of attendees at gatherings and emphasizing mask use, physical distancing, isolation for patients with COVID-19, and quarantine for close contacts as strategies for reducing the spread of COVID-19."
  • "[T]hese findings demonstrate the rationale for consistent mitigation measures across states."

Minnesota Gov. Tim Walz, a Democrat, criticized South Dakota Republican Gov. Kristi Noem for refusing to take more aggressive steps to slow the spread on the virus in the state, the Washington Post reports.

  • Walz said the Sturgis rally was "absolutely unnecessary," adding that Noem should have canceled the annual event and imposed a statewide mask mandate.

Go deeper

Jan 29, 2021 - Health

Ex-CDC director Tom Frieden on the next COVID-19 vaccines

Americans fortunate enough to receive COVID vaccines now, outside of clinical trials, are getting shots made by either Pfizer or Moderna. But newly released data from Novavax and Johnson & Johnson suggests that more vaccines could be on the way, with J&J's requiring a single dose.

Axios Re:Cap digs into the news and why it matters with Tom Frieden, former head of the CDC, as COVID-19 variants spread globally.

Jan 29, 2021 - Health

J&J says its one-shot vaccine is 66% effective against moderate to severe COVID

Photo: Thiago Prudêncio/SOPA Images/LightRocket via Getty Images

Johnson & Johnson announced Friday that its single-shot coronavirus vaccine was 66% effective in protecting against moderate to severe COVID-19 disease in Phase 3 trials, which was comprised of nearly 44,000 participants across eight countries.

Between the lines: The vaccine was 72% effective in the U.S., but only 57% effective in South Africa, where a more contagious variant has been spreading. It prevented 85% of severe infections and 100% of hospitalizations and deaths, according to the company.